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Finding the Fourth Proportional to 92,871.02, 128,162.52 and 50,429.54

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Solution

The fourth proportional to 92,871.02, 128,162.52 and 50,429.54 is: 69,593.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,871.02 : 128,162.52 = 50,429.54 : x
  2. Step 2: Convert to fraction form
    92,871.02/128,162.52 = 50,429.54/x
  3. Step 3: Cross multiply
    92,871.02x = 128,162.52 × 50,429.54
  4. Step 4: Simplify right side
    92,871.02x = 6,463,176,928.84
  5. Step 5: Solve for x
    x = 6,463,176,928.84/92,871.02
  6. Step 6: Final answer
    x = 69,593.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.